Well an update:
I know it's been 2 months and I already posted it but', in the end
I bought a D7000 , a 18-105 mm lens and SB700.
So far I am happy with it, though it would take a while to understand it all.

óne question:
I want some macro photography which the lense I curently have
cannot do.

what good affordable macro lenses are there?
It dosn't have to be a nikkor, any tamron or such will do.
Just as long as they are good qulity and affordable.